HairStrandsCore/Public/Niagara/NiagaraDataInterfaceHairStrands.h
Proxy to send data to gpu
struct FNDIHairStrandsProxy : public [FNiagaraDataInterfaceProxy](API\Plugins\Niagara\FNiagaraDataInterfaceProxy)
TMap<FNiagaraS...
SystemInstancesToProxyData
List of proxy data for each system instances